Improvement in oil-well pumps



p portion of thecollar o. upon the tube.

NATHAN WEARE, 0F MARIETTA, OHIO.

IMPROVEMENT I N OIL-WELL PUMPS.

Specification forming part of Letters Patent No. 131,800, dated October1, 1872.

To all whom it may concern:

Be it known that I, NATHAN WEARE, of Marietta, in the county ofWashington and State of Ohio, have invented a new and useful Substitutefor `Seed Bag in Oil Well Pumps; and I do hereby declare that thefollowing is a full and exact description oi' the same, reference beinghad to the accompanying drawing and to the letters of reference markedthereon.

This invention is designed as a substitute for the seed-bag used inoil-well pumps; and consists, mainly, inthe employment, inV connectionvwith the well-tube, of a bell-shaped device, which fills the bore ofthe well and prevents the descent of sediment,&c., below it.

In the drawing, Figures 1 and 2 represent sectional elevations of myimproved device.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe fully itsconstruction and manner of operation.

A represents a section of the well-tube,

which is provided with a collar, a, having a threaded portiomcf, asshown. B represents the bell-shaped device, which is employed as asubstitute for the seed-bag. It may be secured to the tube A in anyproper manner, but is preferably constructed with a threaded portion,adapted to screw onto the threaded It is adapted from` its shape 'andsize to rest with its lower edge upon a shoulder in the bore of theWell, located at any proper point. v-When thus arranged a tight joint isformed in a short time by the falling of the sediment, so

i that the oil-bearing rock is protected from the inflow of water. Bymeans oi this construcwell may be conveyed away to any desired point andutilized; or, if desired, steam may be thereby introduced into the wellfor the purpose ot' dissolving any parafne which may accumulate therein.

In cases where there is no offset or shoulder in the Wella cup, b1, ofleather or other proper material is employed, which is secured to thelower end of the device' B, preferably by means of a screw-collar, b2,as shown. As

this cup, if of the proper size, will fit the bore of the well quiteaccurately the fall of sediment will soon make a tight joint by means ofwhich the well below will be protected.

4The advantages of the described invention are quite marked. Thewell-tube is supported partially from below instead of entirely fromabove. The well below the device is protected from the inflow ot' water.The gas collecting in the well may be easily conveyed away and utilized,or steam may be introduced to dissolve the accumulated parafne. By

mea-ns of the cup and iiange the device may 3. The combination of tube Awith the del vice B having the leather cup b1, as described.

4. The combination of the tube A with collar a, device B, with socket b,and cup b1, as

described.

This specification signed and witnessed this i 6th day of May, 1872.

NATHAN WEARE.

Witnesses:

D. M. JoNEs,

W. H. J oHNsoN.

